jQuery.extend( jQuery.fn.dataTableExt.oSort, {
    "date-uk-pre": function ( a ) {
        var ukDatea = a.split('/');
        return (ukDatea[2] + ukDatea[1] + ukDatea[0]) * 1;
    },
 
    "date-uk-asc": function ( a, b ) {
        return ((a < b) ? -1 : ((a > b) ? 1 : 0));
    },
 
    "date-uk-desc": function ( a, b ) {
        return ((a < b) ? 1 : ((a > b) ? -1 : 0));
    }
} );